I have performed an fMRI experiment involving overt responses, which we
were able to record using equipment provided by opti-MRI, which includes
online noise cancelling. For our needs response time is very important
and I was wondering whether there is any literature on an optimal way to
detect the onset and duration of the responses from the audio signal.
Because of the nature of fMRI experiments the recording is pretty noise
(with random spikes appearing here and there). Any help would be really
appreciated.